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SID: 2039615 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 1Nov 1, 2022, 12:00 PM

ET INFO Observed Dynamic DNS Service Domain in TLS SNI (duia .ro)

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed Dynamic DNS Service Domain in TLS SNI (duia .ro)"; flow:established,to_server; tls.sni; dotprefix; content:".duia.ro"; endswith; fast_pattern; classtype:misc-activity; sid:2039615; rev:1; metadata:affected_product Any, attack_target Client_and_Server, created_at 2022_11_01, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_11_01;)

Nov 1, 2022, 12:00 PM

Nov 1, 2022, 12:00 PM

Sep 21, 2024, 3:00 AM

Aug 28, 2025, 9:34 PM

rules/emerging-info.rules